Patrick byan



(No Model.)

P. RYAN.

Y STREET sWEEPINL-r MACHINE.

Patented Feb'. 6,1883.

INVENTOR:

BY uw m nETTOENEYS.

- o it wil'l be elevated by means of the plates or UNrinD ASTATES y a'rENi Ottica.

PATRICK RYAN, OF NEVlT YORK, N. Y., ASSIGNOR OF TWO-THIRDS TO WILLIAM H. KELLY AND RICHARD J. MORRISON, BOTH OF SAME PLAGE.

SPECIFICATION forming part of Letters Patent` No. 271,993, dated February 6, 1853.

Application filed August 5, 1882. (No model.)

. To all whom it may concern Be it known that I, PATRICK RYAN, of the city, county, and State of New York, have invented a new and Improved Street-Sweeping 5 Machine, of which the following is a full, clear,

and exact description.

My invention relates to that class of streetsweeping machines which elevate the sweepings into a receiver forming part of the ma- 1o chine, from which they are to be dumped at intervals into piles; and it consists of the construction, arrangement, and combination of the parts of the machine, whereby the same is made eflicient and practical for its purpose, I 5V all as hereinafter fully described and claimed. Reference is to be had to the accompanying drawings,.forr nin g part of this specification, iu which similar letters of reference indica-te corresponding parts in all the figures. Figure `l is a side elevation of my new and improved street-sweepin g machine. Fig. 2 is a plan view of the same. Fig. 3 is a detailed sectional elevation, showing Athe means for dumpingy `the sweepings from the box or receptacle of the machine, and Fig. 4 is a detailed sectional elevation, showin gthe method i of attaching to the cross-piece the upper beveled cog and sprocket wheels of the elevator.

The side plates or bars, a a, are placed loosely upon the rear axle, B, near the hubs of the .rear wheels, A A, and are tied together with the tie-rode. These plates thus tied together constitu te the vertically swinging sweep-frame A', and in the free'or outer end of this frame isjournaled the brush O. Near to and parallel with the rear axle, B, is jonrnaled in this` swinging sweep-frame A the shaftcl, which is provided outside of the said frame with the` sprocket-wheel b and inside of the saidframe 4o with thesmall cog-wheel c, which meshes with the larger cog-wheel D, that is fixed upon the axle B. Leading over this sprocket-wheel b and over the sprocket-wheel f, secured to the end of the shaft c of the brush C, is the chain E, which communicates the rotating motion of the axle B and shaft dto the brush G, which, when the machine is inaction, will sweep the dirt from the pavement upon or into the lower end of the dnstpan or apron F, from whence buckets g g of the endless elevators G G up into the dirt-receiver H, formed in the main box Hof the machine. The dust pan or apron F is narrower than the swinging sweep-frame A, andl passes down between the bars a a thereof, as shown,`and it isformed with the side iianges, h It, and at its lower end with the cross-flange h and lip t', and is hinged to the rearlowercoruer ofthe main box H', asshown, and is of such length relative tothe height of 6c the bottom ot' the main box from the pavement and the length of the swinging sweepframe A' that its rear end is adapted to reach back to and todrag upon the pavement partially under the brush C. In this mannerthe pan or apron is always held at an angle to the box H', as shown in Fig. 1, and always kept in proper position to have the dirt from the pavement swept by the brush upon it over the lip i, where it will be held, as in a box, by the 7o iiange h until carried by the elevators up the inclined apron and inclined plate J and dropped over the upper edge ot' the latter into the receiver H. The inclined plate J is secured in the box H', so as to stand on about the saine 7 5 slant with the bottom of the dust-pan F, as shown in dotted lines inFig. 1, and its upper edge stands somewhat below the upper edges of the box H,'as shown in Fig. 2.

Above the upper edge of the inclined plate So J, and in the same plane therewith, is secured between the sides of the main box H the crosspiece K, in which are screwed and locked, by means of the jam-nutsjj, (shown in Fig. 4,) the studs L L, upon which are placed the small sprocket-wheels M M and the beveled cogwheels N N, which are' attached to or made integral with the sprocket-wheels M M. These sprocket-wheels and beveled cog-wheels are Vadapted to receive motion when the machine 9o is in gear from the shaft O through the beveled cog-wheels O O', secured thereon, which mesh with the beveled cog-wheels N N, as shown iufFig. 2, and they are adapted to communicate motion to the elevators G G, which 9'5 pass over the said sprocket-wheels M M and over the pulleys IJ P, journaled ou `the pins 19 p, secured in the apron F, near its lower end,

as shown. The shaft O, when the machine is in action, Vreceives motion from the axle B roo through the chain Q, which passes over the sprocket-wheel Q', secured tothe said axleand over the small sprocket-wheel R, placed upon the end ofthe said shaft. The sprocket-wheel R is formed with a clutch-face, and the shaft 0 is formed or provided with a corresponding clutch-face, andthe sprocket-wheel is adapted to be moved upon the said shaft O by means ofthe lever R for putting the machine in or out of gear.

lc k are curved irons'sccured to the upper edge of' the inclined plate J and to the crosspiece K, thus forming tracks for supporting the outer ends of the plates or buckets g g of the elevators from the time they leave the plate J until they reach it again, as will be clearly understood from Fig. 2; and Z is a hinged bar, that extends the whole length of the apron F and inclined plateJ in the center, and serves to hold the plates g g down upon the bottom of the apron and upon the inclined plate J, so that as they'move upward the dirt will not fall back under them and escape, but

will all be carried up over the edge of the-plate J and dropped into the receiver H. The bottom of this receiver H is made hopper-shaped, and is so formed as to be adapted to discharge its contents at one side ofthe machine, as indicated in Figs. 2 and 3, the door L' being adapted to be let down, as shown in Fig. 3, for opening the receiver, and to be held at an incline to form a chute for conveying the material some distance to the side ofthe machine, so that the pile ofsweepings dumped upon the pavement will not interfere with the movement of the machine forward after dumping. The

door L' is adapted to close the opening I1 in the side of the box H' when the machine is in action, as indicated'in Fig. 2.

At the rear end of the main box H', in suitable bearings, isjournaled the rock-shaft S,to which is secured thecentral rearwardly-extending arm, m, and the side rearwardly-ex-4 tending arms, a n. The central arm, m, is connected by means of the rod 0 to the center ofv the tie-rod e, while the arms u n are connected by means of the chains q q to the sides of the dustpan or apron F. To one end ofthe sh att is attached a crank, T, which is connected to the lower end ot' the lever T' by means ofthe connecting-rod U, so that upon forcing the upper end of the lever T forward the arms m and a n will be thrown upward, raising the sweep frame A' and the dust pan or apronl F, so that the brush C and the'lower end of the apron maybe raised off from the pavement.

U' is a spring arm or catch, adapted to engagezthe upper end ofthe leverT' when thrown forward, for holding it in that position for carrying the frame A' and the dust pan or apron F in elevated position clear of the pavement. The chainsq qare somewhat longer than the evian?.

the lever R outward and to lower the frame A' and apron by disengaging the lever T' from the catch U'. rl`he machine is now simply to be drawn over the pavement untilthe accumulation of sweepings in the receiver requires dumping. The door L is then to be opened, wheleupon the sweepings will flow out of the receiver and be' deposited in a pile at the side of the machine. The door is now to be closed 1 and the sweeping continued until finished.

Having thus described my invention, what 4I claim as new, and desire to secure by Letters Patent, is-

l. In a street-s\veeper,the combination, with thebox H', the hinged frame A', the brush C, journaled in said frame, and means for rotating said brush, oi' the dust pan or apron F, hinged -to the rear ot' the box H', the inclined plate J, extending nearly to the top of the said box and vforming a continuation of the dust pan or apron, and theelevators G, substantially as herein shown and described.

2. In a street-sweeper, the lian ged and hinged dust pan or apron F, provided with the lip i land cross-piece h', and the inclined plate J,

forming a continuation of the said dust pan or apron, in combination with the brush C and the elevators G G, substantially as herein shown and described.

3. In a street-sweeper, the combination, withthe axle B, provided with sprocket-wheel Q', the shaft O, provided with the sprocket-wheel R, the chain Q, gear-wheels O O'N N, sprocketwhcelsM M, pulleys P P, and the elevators G G, of the frame A', the brush C, sprocketwheels bf, chain Eand the cog-wheel c, substantially as herein shown and described.

4. The axleB, provided with the sprocket` wheel Q', and the shaft 0, provided with the sprocket-wheel R, in combination with the chain Q, gear-wheels 0 O' and N N, sprocketwheelsM M, pulleys P P, and elevators Gr G,

`substantially as described.

5. The combination, with the apron F, hinged to the rear of the box H', of the guard-bar l, the inclined plate J, and elevators Gr Gr, substantially as and for the purposes set forth.

Y i PATRICK RYAN. Witnesses:

H. A. WEST, C..SEDGWICK.

IOO 

